EP 0889279 A2 19990107 - Apparatus and method for filling and sealing a vessel with high pressure gas
Title (en)
Apparatus and method for filling and sealing a vessel with high pressure gas
Title (de)
Vorrichtung und Verfahren zur Füllung und Versiegelung eines Gefässes mit einem Hochdruckgas
Title (fr)
Dispositif et procédé pour remplir et sceller un récipient avec un gaz sous haute pression
Publication
Application
Priority
US 88720897 A 19970702
Abstract (en)
An apparatus and a method for filling and sealing a pressure vessel with high pressure gas using a sealing element which allows a gas fill and weld head assembly to form a reliable, reusable gas tight seal with the surface of the pressure vessel each time the filling and sealing operation is performed. The sealing element is made of a relatively hard, gas impermeable material having a knife edge which bites into the surface of the pressure vessel to form a gas tight seal between the sealing element and the surface of the pressure vessel. As the sealing element is made of a relatively hard, gas impermeable material, such as steel, the high pressure gas and stall molecule gasses do not permeate into nor diffuse rapidly out of the sealing element, and thus the integrity of the sealing element is maintained over repeated use. The present invention is particularly suited for filling and sealing airbag canisters, but may be used in any application wherein a pressure vessel must be filled and sealed with high pressure gas. <IMAGE>
IPC 1-7
IPC 8 full level
F17C 5/06 (2006.01); F17C 13/06 (2006.01); B60R 21/268 (2011.01)
CPC (source: EP)
F17C 5/06 (2013.01); F17C 13/06 (2013.01); B60R 21/268 (2013.01); F17C 2201/0109 (2013.01); F17C 2201/058 (2013.01); F17C 2203/0643 (2013.01); F17C 2205/0323 (2013.01); F17C 2205/0382 (2013.01); F17C 2209/221 (2013.01); F17C 2221/017 (2013.01); F17C 2223/0123 (2013.01); F17C 2223/036 (2013.01); F17C 2227/04 (2013.01); F17C 2260/036 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DOCDB simple family (application)
EP 98111569 A 19980624